/
owncloud_3rdparty_Sabre_DAVACL_Property_Acl.php
186 lines (144 loc) · 5.66 KB
/
owncloud_3rdparty_Sabre_DAVACL_Property_Acl.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
<?php
/**
* This class represents the {DAV:}acl property
*
* @package Sabre
* @subpackage DAVACL
* @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class Sabre_DAVACL_Property_Acl extends Sabre_DAV_Property {
/**
* List of privileges
*
* @var array
*/
private $privileges;
/**
* Wether or not the server base url is required to be prefixed when
* serializing the property.
*
* @var boolean
*/
private $prefixBaseUrl;
/**
* Constructor
*
* This object requires a structure similar to the return value from
* Sabre_DAVACL_Plugin::getACL().
*
* Each privilege is a an array with at least a 'privilege' property, and a
* 'principal' property. A privilege may have a 'protected' property as
* well.
*
* The prefixBaseUrl should be set to false, if the supplied principal urls
* are already full urls. If this is kept to true, the servers base url
* will automatically be prefixed.
*
* @param bool $prefixBaseUrl
* @param array $privileges
*/
public function __construct(array $privileges, $prefixBaseUrl = true) {
$this->privileges = $privileges;
$this->prefixBaseUrl = $prefixBaseUrl;
}
/**
* Returns the list of privileges for this property
*
* @return array
*/
public function getPrivileges() {
return $this->privileges;
}
/**
* Serializes the property into a DOMElement
*
* @param Sabre_DAV_Server $server
* @param DOMElement $node
* @return void
*/
public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
$doc = $node->ownerDocument;
foreach($this->privileges as $ace) {
$this->serializeAce($doc, $node, $ace, $server);
}
}
/**
* Unserializes the {DAV:}acl xml element.
*
* @param DOMElement $dom
* @return Sabre_DAVACL_Property_Acl
*/
static public function unserialize(DOMElement $dom) {
$privileges = array();
$xaces = $dom->getElementsByTagNameNS('urn:DAV','ace');
for($ii=0; $ii < $xaces->length; $ii++) {
$xace = $xaces->item($ii);
$principal = $xace->getElementsByTagNameNS('urn:DAV','principal');
if ($principal->length !== 1) {
throw new Sabre_DAV_Exception_BadRequest('Each {DAV:}ace element must have one {DAV:}principal element');
}
$principal = Sabre_DAVACL_Property_Principal::unserialize($principal->item(0));
if ($principal->getType()!==Sabre_DAVACL_Property_Principal::HREF) {
throw new Sabre_DAV_Exception_NotImplemented('Currently only uri based principals are support, {DAV:}all, {DAV:}unauthenticated and {DAV:}authenticated are not implemented yet');
}
$principal = $principal->getHref();
$protected = false;
if ($xace->getElementsByTagNameNS('urn:DAV','protected')->length > 0) {
$protected = true;
}
$grants = $xace->getElementsByTagNameNS('urn:DAV','grant');
if ($grants->length < 1) {
throw new Sabre_DAV_Exception_NotImplemented('Every {DAV:}ace element must have a {DAV:}grant element. {DAV:}deny is not yet supported');
}
$grant = $grants->item(0);
$xprivs = $grant->getElementsByTagNameNS('urn:DAV','privilege');
for($jj=0; $jj<$xprivs->length; $jj++) {
$xpriv = $xprivs->item($jj);
$privilegeName = null;
for ($kk=0;$kk<$xpriv->childNodes->length;$kk++) {
$childNode = $xpriv->childNodes->item($kk);
if ($t = Sabre_DAV_XMLUtil::toClarkNotation($childNode)) {
$privilegeName = $t;
break;
}
}
if (is_null($privilegeName)) {
throw new Sabre_DAV_Exception_BadRequest('{DAV:}privilege elements must have a privilege element contained within them.');
}
$privileges[] = array(
'principal' => $principal,
'protected' => $protected,
'privilege' => $privilegeName,
);
}
}
return new self($privileges);
}
/**
* Serializes a single access control entry.
*
* @param DOMDocument $doc
* @param DOMElement $node
* @param array $ace
* @param Sabre_DAV_Server $server
* @return void
*/
private function serializeAce($doc,$node,$ace, $server) {
$xace = $doc->createElementNS('DAV:','d:ace');
$node->appendChild($xace);
$principal = $doc->createElementNS('DAV:','d:principal');
$xace->appendChild($principal);
$principal->appendChild($doc->createElementNS('DAV:','d:href',($this->prefixBaseUrl?$server->getBaseUri():'') . $ace['principal'] . '/'));
$grant = $doc->createElementNS('DAV:','d:grant');
$xace->appendChild($grant);
$privParts = null;
preg_match('/^{([^}]*)}(.*)$/',$ace['privilege'],$privParts);
$xprivilege = $doc->createElementNS('DAV:','d:privilege');
$grant->appendChild($xprivilege);
$xprivilege->appendChild($doc->createElementNS($privParts[1],'d:'.$privParts[2]));
if (isset($ace['protected']) && $ace['protected'])
$xace->appendChild($doc->createElement('d:protected'));
}
}